<script setup>
import { Plus,Upload, UploadFilled } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { useUserStore } from '@/stores';
import { onUpdated } from 'vue';
import {userUpdateAvatarService} from '@/api/user'
// 基于store的数据，初始化imgUrl的初始值
const userStore = useUserStore();
const imgUrl = ref(userStore.user.user_pic);
const uploadRef = ref()
const onSelectFile=(uploadFile)=>{
  // 基于 FileReader读取图片做预览
  const resderer = new FileReader()
  resderer.readAsDataURL(uploadFile.raw)
  resderer.onload=()=>{
    imgUrl.value=resderer.result
    console.log(imgUrl.value);
    
  }

 imgUrl.value=URL.createObjectURL(uploadFile.raw)
}

const onUpdateAvatar = async () => {
  // 发送请求更新头像
  await userUpdateAvatarService(imgUrl.value)
  // userStore重新渲染
  await userStore.getUser()
  // 提示用户
  ElMessage.success('更新头像成功')

}
</script>

<template>
 <page-container title="更换头像">
 <el-upload
 ref="uploadRef"
 :auto-upload="false"
    class="avatar-uploader"
    :show-file-list="false"
    :on-change="onSelectFile"
  >
    <img v-if="imgUrl" :src="imgUrl" class="avatar" />
    <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
  </el-upload>
 </page-container>
 <el-button @click="uploadRef.$el.querySelector('input').click()" type="primary" :icon="Plus" size="large">选择图片</el-button>
 <el-button @click="onUpdateAvatar" type="success" :icon="Upload" size="large">上传图片</el-button>
</template>

<style lang="scss" scoped>
.avatar-uploader {
  :deep() {
    .avatar {
      width: 278px;
      height: 278px;
      display: block;
    }
    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }
    .el-upload:hover {
      border-color: var(--el-color-primary);
    }
    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 278px;
      height: 278px;
      text-align: center;
    }
  }
}
</style>